Y1746452R000T9R datasheet, PDF

SMR1DZ / SMR3DZ (Z-Foil)

Ultra High Precision Z-Foil Molded Surface Mount Resistor

with TCR down to ±0.2 ppm/°C, PCR of ±5 ppm at Rated Power,

Flexible Terminations, and Load-Life Stability of ±0.005 % (50 ppm)

FEATURES AND BENEFITS

• Temperature coefficient of resistance (TCR):

±0.2 ppm/°C typical (–55°C to +125°C, +25°C ref.)

• Tolerance: to ±0.01%

• Power coefficient of resistance (PCR) “∆R due to self

heating": 5 ppm at rated power

• Flexible Terminations ensure minimal stress

transference from the PCB due to a difference in

thermal coefficient of expansions (TCE)

• Electrostatic discharge (ESD): at least to 25 kV

• Load-life stability: ±0.005% (70°C, 2000 h)

• Resistance range: 5

Ω

to 80 kΩ (for higher and lower

values, please contact us)

• Power rating: to 600 mW at +70°C

• Non-inductive, non-capacitive design

• Current noise: –40 dB

• Voltage coefficient: <0.1 ppm/V

• Non-inductive: <0.08

• Non hot spot design

• Terminal finishes available: lead (Pb)-free, tin/lead alloy

• Matched sets with TCR tacking are available upon

request

• For higher performances, please contact us

• Any value available within Resistance Range (e.g.,

1K234)

• For prototype samples, please contact

foil@vpgsensors.com

Any value at any tolerance

available within resistance range

R

2

R

1

V

in

-

+

V

out

SMRxDZ

APPLICATIONS

• Precision amplifiers

• High precision

instrumentation

• Medical

• Automatic test

equipment (ATE)

• Industrial

• Audio (high end stereo

equipment)

• EB application

• Military, airborne and

space

• Pulse application

• Measurement

instrumentation

INTRODUCTION

The SMRxDZ is an ultra high precision molded surface

mountable resistor offering all the elements of precision;

including low TCR, tight tolerance, long term stability,

low noise, low thermal EMF, and non-measurable voltage

coefficient. One of the important parameters influencing

stability is the Temperature Coefficient of Resistance

(TCR). Although the TCR of foil resistors is considered

Table 1—Tolerance and TCR vs. Resistance

Value

(–55°C to +125°C, +25°C Ref.)

Value

(Ω)

50 Ω to 80 kΩ

20 Ω to <50 Ω

10 Ω to <20 Ω

5 Ω to <10 Ω

Figure 1—Power Derating Curve

200

Percent of Rated Power (%)

175

150

125

100

75

50

25

0

–75

–25

+25

+75

+125

Ambient Temperature (°C)

+175

–55 °C

+ 70 °C

Standard

Tolerance

(1)

(%)

±0.01%

±0.02%

±0.05%

±0.1%

Typical TCR and

Max. Spread

(1)

(ppm/°C)

±0.2 ±1.8

±0.2 ±2.8

±0.2 ±4.8

±0.2 ±6.8

Note

(1)

For values <5 Ω and tighter performance, contact us.

Note

* This datasheet provides information about parts that are

RoHS-compliant and/or parts that are non-RoHS-compliant.

For example, parts with lead (Pb) terminations are not RoHS

compliant. Please see the information/tables in this datasheet

for details.

Document No.: 63118

Revision: 21-Oct-2015

For any questions, contact

foil@vpgsensors.com

www.vishayfoilresistors.com

1

SMR1DZ / SMR3DZ (Z-Foil)

extremely low, this characteristic has been further refined

over the years. The SMRxDZ utilizes ultra high precision

Bulk Metal

®

Z-Foil.

The Z-Foil technology provides a significant reduction of

the resistive element’s sensitivity to ambient temperature

variations (TCR) and to self heating when power is applied

(power coefficient).

Voltage division with tight tracking <2 ppm/°C can be

achieved with two randomly selected units even with a

large ratio between the two values.

Our Application Engineering Department is available to

advise and make recommendations. For non-standard

technical requirements and special applications, please

contact us.

Table 2—Performance Specifications

Parameters

SMR1DZ

Resistance Range

Rated Power

Weight

Packaging

Test

Max. Working Voltage

Max. Operating

Temperature

Working Temperature

Range

Thermal Shock

Short Time Overload

Low Temperature

Operation

Dielectric Withstanding

Voltage

Insulation Resistance

Resistance to

Soldering Heat

Moisture Resistance

Shock

Vibration, High Frequency

Load-Life Stability

(2000 h)

High Temperature

Exposure

5

Ω

to 10 kΩ

10 kΩ to 33 kΩ

5

Ω

to 30 kΩ 30 kΩ to 80 kΩ

0.250 W at 70°C 0.160 W at 70°C 0.6 W at 70°C 0.4 W at 70°C

0.125 W at 125°C 0.08 W at 125°C 0.3 W at 125°C 0.2 W at 125°C

0.1143 g

0.244 g

Bulk (loose) or tape and reel, per EIA-481-1

Conditions

73 V

180 V

+175°C (see Figure 1)

–55°C to +125°C (MIL range)

–65°C to +150°C; 30 min; 5 cycles

6.25 x rated power; 5 s

–65°C, 24 h (no load): 45 min at rated power

Atmospheric pressure; AC 200 V; 1 min

DC 100 V; 1 min

260°C for 10 s

+65°C to –10°C; 90% to 98% RH; rated power; 240 h

100 G; Sawtooth

10~2000~10 Hz; 20 G; X, Y, Z each 2.5 h

0.04 W at +70°C

0.25 W at +70°C

0.125 W at +125°C

0.1 W at +70°C

0.6 W at +70°C

0.3 W at +125°C

Specifications

SMR3DZ

Maximum Limit

(1)

SMR1DZ

SMR3DZ

5

Ω

to 33 kΩ

5

Ω

to 80 kΩ

See Figure 1

Maximum Limit

(1)

—

R >100 Ω: ±0.02% (200 ppm)

R ≤100 Ω: ±0.03% (300 ppm)

±0.01% (100 ppm)

over 10 000 MΩ

±0.03%

±0.03% (300 ppm)

±0.01% (100 ppm)

Typical

0.005%

0.02%

0.05% max

Typical

0.005%

0.015%

0.05% max

175°C; no load 2000 h

±0.1% (1000 ppm)

Note

(1)

As shown +0.01

Ω

to allow for measurement errors at low values.

www.vishayfoilresistors.com

2

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Document No.: 63118

Revision: 21-Oct-2015

SMR1DZ / SMR3DZ (Z-Foil)

Figure 2—Dimensions

in Inches (Millimeters)

Side View

L

TH Minimum

VALUE (5 DIGITS)

Top View

100R0T

z

Stand Off

TOLERANCE

Z-FOIL

INDICATOR

P

End View

H

V

(DATE CODE)

-

W

LEAD (Pb)-FREE INDICATOR

Bottom View

W

H

0.098 ±0.012

(2.49 ±0.30)

0.110 ±0.012

(2.79 ±0.30)

P

0.051 ±0.012

(1.30 ±0.30)

0.051 ±0.012

(1.30 ±0.30)

TW

Model

SMR1DZ

SMR3DZ

L

0.236 ±0.012

(5.99 ±0.30)

0.287 ±0.012

(7.29 ±0.30)

TW

0.087 ±0.004

(2.21 ±0.10)

0.095 ±0.004

(2.41 ±0.10)

TH (Minimum)

0.039

(0.99)

0.039

(0.99)

0.126 ±0.012

(3.20 ±0.30)

0.170 ±0.012

(4.32 ±0.30)

Figure 3—Recommended Mounting Pad Geometries

in Inches (Millimeters)

Reflow Solder Pads

D

C

B

E

A

Model

SMR1DZ

SMR3DZ

Per IPC-SM-782 Rev A

Method

Reflow

A Min

0.110 (2.79)

0.118 (3.00)

B Ref

0.106

(2.69)

C Ref

0.124 (3.15)

0.175 (4.45)

D ±0.04 (±1.02)

0.337 (8.55)

0.388 (9.86)

E Ref

0.050

(1.27)

Figure 4—Trimming to Values

(conceptual illustration)

Interloop

capacitance

reduction

in series

Mutual

inductance

reduction

due to change

in current

direction

Current path

before trimming

Current path after trimming

Figure 5—Typical TCR Curve Z-Foil

+500

TCR Values for Different Temperature Ranges

+400

+300

Note

To acquire a precision resistance value, the Bulk Metal Foil

chip is trimmed by selectively removing built-in “shorting bars.”

To increase the resistance in known increments, marked

areas are cut, producing progressively smaller increases in

resistance. This method reduces the effect of “hot spots” and

improves the long-term stability of VFR resistors.

Trimming process

removes this material

from shorting strip area

changing current path

and increasing

resistance

Foil shown in black, etched spaces in white

+100

R

0

R

(ppm)

–100

–200

–300

–500

+200

0.05 ppm/°C

–0.1 ppm/°C

–0.16 ppm/°C

–55

–25

0.1 ppm/°C

0.14 ppm/°C

0.2 ppm/°C

+100

+125

–400

0

+25

+60 +75

Ambient Temperature (°C)

Notes

• For more details, see Table 1.

• The TCR values for <80

Ω

are influenced by the

termination composition and the result is deviation from

this curve.

Document No.: 63118

Revision: 21-Oct-2015

For any questions, contact

foil@vpgsensors.com

www.vishayfoilresistors.com

3

SMR1DZ / SMR3DZ (Z-Foil)

Table 3—Part Number Information

NEW GLOBAL PART NUMBER: Y174510K0000T9R (preferred part number format)

DENOTES PRECISION

Y

R

=

K

=k

VALUE

0

= Standard

9

= Lead (Pb)-free

1 to 999

= Custom

AER*

Y

1

7

4

5

1

0

K

0

T

9

R

PRODUCT CODE

1745

= SMR1DZ

1746

= SMR3DZ

RESISTANCE TOLERANCE

T

= ± 0.01 %

Q

= ± 0.02 %

A

= ± 0.05 %

B

= ± 0.1 %

C

= ± 0.25 %

D

= ± 0.5 %

F

= ± 1.0 %

L

= Bulk Pack

R

= Tape and Reel

PACKAGING

FOR EXAMPLE: ABOVE GLOBAL ORDER Y1745 10K0000 T 9 R:

TYPE: SMR1DZ

VALUE: 10.0 k

ABSOLUTE TOLERANCE: ± 0.01 %

TERMINATION: Lead (Pb)-free

PACKAGING: Tape and Reel

SMR1DZ

MODEL

SMR1DZ

SMR3DZ

HISTORICAL PART NUMBER: SMR1DZ 10K000 TCR0.2 T S T (will continue to be used)

10K000

OHMIC VALUE

10.0 k

TCR0.2

TCR

CHARACTERISTIC

T

RESISTANCE

TOLERANCE

T

= ± 0.01 %

Q

= ± 0.02 %

A

= ± 0.05 %

B

= ± 0.1 %

C

= ± 0.25 %

D

= ± 0.5 %

F

= ± 1.0 %

S

TERMINATION

S

= Lead (Pb)-free

B

= Tin/Lead

T

PACKAGING

B

= Bulk Pack

T

= Tape and Reel

Note

* For non-standard requests, please contact Application Engineering.

www.vishayfoilresistors.com

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Document No.: 63118

Revision: 21-Oct-2015

Legal Disclaimer Notice

Vishay Precision Group, Inc.

Disclaimer

ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.

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(collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in

any other disclosure relating to any product.

The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but

not limited to, the warranty expressed therein.

VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase.

To the maximum extent permitted by applicable law, VPG disclaims (i) any and all liability arising out of the

application or use of any product, (ii) any and all liability, including without limitation special, consequential or

incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose,

non-infringement and merchantability.

Information provided in datasheets and/or specifications may vary from actual results in different applications and

performance may vary over time. Statements regarding the suitability of products for certain types of applications

are based on VPG’s knowledge of typical requirements that are often placed on VPG products. It is the customer’s

responsibility to validate that a particular product with the properties described in the product specification is suitable for

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Document No.: 63999

Revision: 15-Jul-2014

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1

Parameter Name	Attribute value
resistance	452 Ohms
Tolerance	±0.01%
Power (W)	0.6W
component	metal foil
characteristic	Moisture proof, non-inductive, pulse resistant
Temperature Coefficient	±0.2ppm/°C
Operating temperature	-55°C ~ 175°C
Package/casing	3017 J-lead
Supplier device packaging	SMD
size/dimensions	0.287" long x 0.170" wide (7.29mm x 4.32mm)
Height - Installation (maximum)	0.122"（3.10mm）
Number of terminals	2
failure rate	-

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